Mathematics Middle School

An infant playpen is in the shape of a circle. If the playpen has a radius of 2, what is the approximate area of the playpen? Use 3.14 for pi.

a 12.56 square meters
b 6.28 square meters
c 3.14 square meters
d 10.14 square meters

Answers

Answer 1

Answer:

The answer is 12.566 or 12.57

Step-by-step explanation:

The formula for the area of a circle is [tex]\pi[/tex]r²

∴ 3.14×(2)² is equal to 12.566 or 12.57

Answer 2
Your answer is A : 12.56

Related Questions

Order of Operation

10) An electrician charges $45 per hour and spends $20 a day on gasoline. If he worked for seven hours, write an algebraic expression to represent his earnings for the day.

Answers

45(x)-20

x=hours

7 hours

x=7

45(7)-20 =295

Answer:

y = 45(7) - 20

Step-by-step explanation:

Money earned: 45x.

Money spent: 20

Total money: 45x-20

In this case,  if he worked 7 hours, he would make a total of 45(7)-20, or 295 dollars for the day.

Let me know if this  helps!

Can someone plz help me with this one problem plzzzzz!!!!

Answers

the answer is no!!!!
The answer to your question. Is no

Help me, please????????

Answers

Ok I will help you hold on
They are all the same answer

Try and answer these multiple questions and I will give you brainiest. Good Luck!

Answers

Answer:

6. a. Direction.

7. d. The additional small push was enough to unbalance the forces acting on the rock and allow the rock to move.

8. a. It has the most mass

Answer:

6: Direction which is A

7: Pushing the rock creates friction, causing it to move which is B

8: It has the most mass which is A

Bill and Gina ate 1/2 of their own pizza Bill ate more pizza than Gina. draw a picture and explain how that is possible. (Please help me)

Answers

Answer:

if both of them had different sized pizzas

or if gina didn't eat the crust or something  

Step-by-step explanation:

if gina had a 10 inch pizza and bill had a 12 inch pizza them eating half of there own that would make bill have eaten more

never mind because if I anwer it would be like copying

what would be da answer people

Answers

Answer:

n=2

Step-by-step explanation:

(-y + -2 ) + ( 3y + 6)

-y + 3y = 2y

2 + (-6) = -4

equals to ( 2y - 4)

n=2 hdjdbruxgsiebshsysv

Ryan rolls two fair number cubes labeled 1 through 6. What is the probability that the sum of the two number cubes is 5 or more?

Answers

Answer:

1/3.

Step-by-step explanation:

2 x 6 = 12

1 2 3 4 5 6

1 2 3 4 5 6

4/12 = 1/3

Answer:

1/3.

Step-by-step explanation:

2 x 6 = 12

1 2 3 4 5 6

1 2 3 4 5 6

4/12 = 1/3

Lucy purchases a car for $16,314.40. If she makes a payment each month for the next 40 months, how much will she pay each month. (enter your answer as $dollars.cents)

Answers

Answer:

$407.86

Step-by-step explanation:

16314.4 divided by 40

Answer:

She will pay $407.86 each month

6. Triangles ABC and ADE are similar, as shown. Which must be true? Check all that apply. 5 O AC = AB 3 B NO Вс VA -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 AB NO --3 DE = 280 là BO = 2 DE 6. ADAC = 2AE AE = 250​

Answers

Answer:

6. Triangles ABC and ADE are similar, as shown. Which must be true? Check all that apply. 5 O AC = AB 3 B NO Вс VA -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 AB NO --3 DE = 280 là BO = 2 DE 6. ADAC = 2AE AE = 250

Step-by-step explanation:

MARK ME AS THE BRAINIEST

Answer:

AB 2AE

Step-by-step explanation:

ez

HELP!
Henry is making a corn grits recipe that calls for 14 cups of corn grits for every 12 cups of water.
How much water will he need if he uses 112 cups of corn grits? Enter the number in the box.

Answers

Answer:

about 130

Step-by-step explanation:

Somewhere around 130

PLZ FIND THE MEAN OF 64, 65, 64, 61, 61, 57, 51,

Answers

Answer: the mean is 60

The ans is in the picture with the steps how i got the ans

(hope it helps can i plz have brainlist it will make my day :D hehe)

Step-by-step explanation:

Answer:

Step-by-step explanation:

64, 65, 64, 61, 61, 57, 51 added together equals 423

there are 7 numbers

423 divided by 7 = 60.43

1/10 + 20/100=
2/3+ 1/4 =

ANSWERS ASAP!!
RIGHT ANSWERS GET AUTOMATIC BRAINLYEST

Answers

Answer:

[tex] \frac{1}{10} + \frac{20}{100} = \frac{10}{100} + \frac{20}{100} = \frac{30}{100} [/tex]

[tex] \frac{2}{3} + \frac{1}{4} = \frac{8}{12} + \frac{3}{12} = \frac{11}{12} [/tex]

3/10 and 11/12 jejejakanwjwiaowkwjjwjwja

PLZ I AM TIMED!!!!!!
Describe how the poet's use of structural elements adds to the meaning of "A Tragic Story." Use at least two details from the passage to support your response.

Answers

Can you add a picture?
Add a picture please

What is the surface area, in square millimeters, of the solid? You don’t have to show work, just tell me the answer

Answers

Answer:

The answer is 272.25.

Step-by-step explanation:

what they said
jdifoforpejhs

A tortoise travels 0.945 miles in 3.5 hours.

If it moves at a constant speed, how many miles per hour is it traveling?
It travels at 245 miles per hour

At this rate, how long will it take the tortoise to travel 4.86 miles?

Answers

Answer:

It travels 0.27 miles per hour

It will take 18 hours for the turtle to travel 4.86 miles.

It’s traveling at 3.7 mph and it will take 1.3 hours to travel 4.86 miles

Solve this please I need help

Answers

Answer:

1) x = 3

2) x = 9

3) x = 30

hope it's helpful ❤❤❤❤

THANK YOU.

Answer:

A, C

B, A

C, C

Step-by-step explanation:

A, take 33-9 then you get 24, divide 24 by 8 and get 3

B,  re-wright X/3 to X over 3, then subtract 5 from 8, you're left with 3, now find what X has to equal to make 3, X=9

C, same concept as the last one

1. Mr Pham mowed 2/7 of his lawn... His son mowed 1/4 of it. Who mowed the most

(I got Mr Pham for an answer)

2. How much of the lawn still needs to be mowed (I'm stuck on this one)

Answers

Answer:

the answer is 2/7, so Mr. Pham

Step-by-step explanation: Hope this helps... Have a great day, and God bless you!!!!

I hope I am doing this right...

What I did is that I added 2/7 and 1/4 which is 15/28. Then I thought that there are 28 parts of the lawn and 15 of them are mowed. I subtracted 28 from 15 and got 13....

So I think 13/28 is the answer.

(Sorry if that is wrong)


Have an awesome day :)

What equation is used to solve for an interior angle of a
triangle?
A.) a+b+c= 360
B.) a + b = 90
C.) a+b+c=180
D.) a + b = 180

Answers

Answer:

c) a+b+c=180

Step-by-step explanation:

The correct answer is c hopethis helps

Peter Piper's Pizza most popular pizza is the personal pan pizza. The personal pan pizza is 10 inches in diameter. What is the circumference of the pizza?
A. 3.14 inches
B. 10 inches
C. 31.4 inches
D. 314 inches

Answers

Answer:

C.) 31.4 inches

Step-by-step explanation:

The circumference of a circle is the linear distance of a circle's edge. Pretty much the perimeter of a circle.

Determine the radius of a circle, which is 5 inches (The radius is the diameter divided by 2)Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 5 = 31.4159

Which of the following expressions is equivalent to 4y + z + y − 8 + 6z

4y + 6z − 8

5y + 7z − 8

4y + 6z + 8

−3y + 7z

Answers

4y + z + y - 8 + 6z

( 4y + y ) + (z + 6z ) - 8

5y + 7z -8
Option B
4y + z + y - 8 +6z
first add all the alike variables
4y + y = 5y
z + 6z = 7z
5y + 7z - 8 is the equivalent variable

-5/8 multiplied by 18/25

Answers

I believe the answer is -0.45 . if it's correct, please mark thanks!

At a store, notebooks are marked up 78% from what the retailer paid for them.
The cost of a notebook is represented by n.
Which of the following expressions does NOT represent the markup cost?

A. n + 0.78n

B. (1+ 0.78)n

C. 1.78n

D. 0.78n

Answers

Answer:

D

Step-by-step explanation:

Answer:

A why would he multiply it twice it is to overpriced

Step-by-step explanation:

Marcia is at a store with a 20% off sale. She also has a coupon for an additional 10% off the sale price. Prove or disprove the following statement: A 20% discount on the original price of an item, followed by the use of a 10% off coupon, results in a total discount of 30%.

Answers

Answer:

yes

Step-by-step explanation:

i think this because once you add 20 + 10 it does equal 30 but once you do the actual math it would not be subtractiing 30

Triangle FEG is similar to triangle IHJ. Find the value of y.

PLEASE ANSWER!!!!!

Answers

Answer:

y=10

Step-by-step explanation:

if they are the same angles, subtract 9 from 59, then you have 50. after this, you have 5y, now take that same 50, and divide it by 5 since that's what you have left, you answer should be 10

y =10
you just follow normal formula

Audrey makes beaded necklaces and sells them to Bangles 'n Beads at the mall for $8 per necklace. If Bangles 'n Beads sells them to mall customers with a 25% markup to make a profit, what is their selling price?

A. $2.00

B. $6.00

C. $8.25

D. $10.00

Answers

D.10

8*1.25 =10
You multiply 8 times 1.25 because they are marking it up by 25% that’s why it would be 1.25 so the 8 times 1.25 equals $10

Answer:

A. 2.00

Step-by-step explanation:

actually its 2.00 because when you do the math you move the decimal point for the 25 two spaces to the left and get 0.25 then you multiply it by 8 and get 2.00

i need help asap!!! I can give brainlist.

Answers

1. P is the principal amount, $630.00.
r is the interest rate, 6.5% per year, or in decimal form, 6.5/100=0.065.
t is the time involved, 4....year(s) time periods.
So, t is 4....year time periods.
To find the simple interest, we multiply 630 × 0.065 × 4 to get that:
The interest is: $163.80

2. =8000 x 9 x 18
=12,960
Total amount = 12960 +8000=
$20,960
3. annual interest rate = 15.9 %
initial charge = $126
to get the annual interest paid = 15.9% of $126
= 0.159 * $126 = $20.03
monthly interest paid would be = annual interest / 12 months
= 20.03 / 12 = $1.67
hence in 2 months Rita will pay = initial charge + monthly interest * 2
= $126 + $ 1.67 *2 = $ 126 + $3.34
= $ 129 .34

4. To find the amount of money in the account after 8.5 years we will first turn 5.6% into a decimal. We'll do that by moving the decimal within the percentage two places to the left. That leaves us with 0.056.
Next, we'll multiply our factors to help us find out how much interest will be accrued within the 8.5 years.
500 x 0.056 x 8.5 = 238.
Margarito will earn $238 within an 8.5 year time frame.
Since her original deposit was $500 and assuming no other deposits/withdrawls occur within the time frame, we will add $238 of interest to the original deposit.
500 + 238 = 738.
This means, that Margarito will have $738 in her savings account after 8.5 years of just accruing interest.

5. $18,260 divided by (/) $220,000 = .083 or .08. The interest is 8%.
Because Kelli is earning $18,260 a year, you need to get the number down to a decimal (which would be the interest) So, you have to divide the smaller number by the larger number. I use
x 18260
____ _______
100 % 220000
multiply 100x18260 and then divide by 220000. You get 8.3, or 8.3%, but if you round up, you get 8%.
1. 163.80
2. 12,960
3. 3.34
4. 738
5. 8.3%

Paul is 11 and 5/6 years old.
Greg is 1 and 1/3years younger than Paul,
and Jane is 1 and 1/4 years younger than Greg.

How old is Jane?

Answers

Answer:

How old is jane she is 9 and 1/4

Step-by-step explanation:

So we know that paul is 11 and 5/6

and greg is 1 and 1/3 younger  than paul

and jane is 1 and 1/4 younger  than greg

First we got to the great common factor of the three facrtion

its 12

so paul is 11 and 10/12

greg is 1 and 4/12

jane is 1 and 3/12

subtract paul age to gregs  which is  10 and 6/12 simpfly to is 10 and 1/2

the subtract gregs age to janes which is 9 and 3/12 simply  is 9 and 1/4

HELP MEEEEEEEEEEEE PRETTY PLEASE

Answers

Answer:

Step-by-step explanation:

y=15, x=53, z=36

y=15
x=53
z=36
i think that's right

someone please help I'll give brainliest

Answers

Answer:

20 split up 4 ways

4 groups of an overall 20

dividing 20 4 ways

hope this helps

20 spilt 4 intkdndkdkdkdjdjdjd

Helppppppppppppppppppppp

Answers

-7,-4 for number four cause I don’t know the last one sorry

Answer: -7, -4, I don't know the other answers but I can understand the struggle of middle school

Step-by-step explanation:

Other Questions
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